I have been trying the 53gr. XLC, and have tried one load with the 53gr. TSX in my ruger target 220 swift. Similar issues. Have tried 3 different powders, 8 charge weights combined, and 2 seating depths, all with dismal results. One "group" if you can call it that, of 3" 5 shots with N160. The rest 5 shots will not all touch the paper. (2'x2' piece)I have also been told to try the new lighter TSX. They are not keyholing, and the rifle shoots every factory load I have tried, under 1" easily, 55gr. hornady vmax, 60gr. hornady hp, 52gr. sierra hpbt federal loads (1/4" groups).